665137276660030 has 64 divisors (see below), whose sum is σ = 1264229639749440. Its totient is φ = 251259089412096.

The previous prime is 665137276660013. The next prime is 665137276660061. The reversal of 665137276660030 is 30066672731566.

It is a happy number.

665137276660030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×665137276660030³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94759674 + ... + 101536546.

It is an arithmetic number, because the mean of its divisors is an integer number (19753588121085).

Almost surely, 2^{665137276660030} is an apocalyptic number.

665137276660030 is a deficient number, since it is larger than the sum of its proper divisors (599092363089410).

665137276660030 is a wasteful number, since it uses less digits than its factorization.

665137276660030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6778525.

The product of its (nonzero) digits is 34292160, while the sum is 58.

The spelling of 665137276660030 in words is "six hundred sixty-five trillion, one hundred thirty-seven billion, two hundred seventy-six million, six hundred sixty thousand, thirty".